package orm;

import java.util.List;
import org.hibernate.LockMode;
import org.hibernate.Query;
import org.hibernate.criterion.Example;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * A data access object (DAO) providing persistence and search support for
 * BuyerGroup entities. Transaction control of the save(), update() and delete()
 * operations can directly support Spring container-managed transactions or they
 * can be augmented to handle user-managed Spring transactions. Each of these
 * methods provides additional information for how to configure it for the
 * desired type of transaction control.
 * 
 * @see orm.BuyerGroup
 * @author MyEclipse Persistence Tools
 */

public class BuyerGroupDAO extends BaseHibernateDAO {
	private static final Logger log = LoggerFactory
			.getLogger(BuyerGroupDAO.class);
	// property constants
	public static final String BUYER_ID = "buyerId";
	public static final String GOUP_ID = "goupId";
	public static final String IS_LAUNCHER = "isLauncher";
	public static final String BUY_QUANTITY = "buyQuantity";
	public static final String TOTAL_MONEY_FOR_SINGLE = "totalMoneyForSingle";
	
	private static BuyerGroupDAO buyerGroupDAO = new BuyerGroupDAO();
	
	private BuyerGroupDAO() {
		
	}
	
	public static BuyerGroupDAO getInstance() {
		return buyerGroupDAO;
	}

	public void save(BuyerGroup transientInstance) {
		log.debug("saving BuyerGroup instance");
		try {
			getSession().save(transientInstance);
			log.debug("save successful");
		} catch (RuntimeException re) {
			log.error("save failed", re);
			throw re;
		}
	}

	public void delete(BuyerGroup persistentInstance) {
		log.debug("deleting BuyerGroup instance");
		try {
			getSession().delete(persistentInstance);
			log.debug("delete successful");
		} catch (RuntimeException re) {
			log.error("delete failed", re);
			throw re;
		}
	}

	public BuyerGroup findById(java.lang.Integer id) {
		log.debug("getting BuyerGroup instance with id: " + id);
		try {
			BuyerGroup instance = (BuyerGroup) getSession().get(
					"orm.BuyerGroup", id);
			return instance;
		} catch (RuntimeException re) {
			log.error("get failed", re);
			throw re;
		}
	}

	public List findByExample(BuyerGroup instance) {
		log.debug("finding BuyerGroup instance by example");
		try {
			List results = getSession().createCriteria("orm.BuyerGroup")
					.add(Example.create(instance)).list();
			log.debug("find by example successful, result size: "
					+ results.size());
			return results;
		} catch (RuntimeException re) {
			log.error("find by example failed", re);
			throw re;
		}
	}

	public List findByProperty(String propertyName, Object value) {
		log.debug("finding BuyerGroup instance with property: " + propertyName
				+ ", value: " + value);
		try {
			String queryString = "from BuyerGroup as model where model."
					+ propertyName + "= ?";
			Query queryObject = getSession().createQuery(queryString);
			queryObject.setParameter(0, value);
			return queryObject.list();
		} catch (RuntimeException re) {
			log.error("find by property name failed", re);
			throw re;
		}
	}

	public List findByBuyerId(Object buyerId) {
		return findByProperty(BUYER_ID, buyerId);
	}

	public List findByGoupId(Object goupId) {
		return findByProperty(GOUP_ID, goupId);
	}

	public List findByIsLauncher(Object isLauncher) {
		return findByProperty(IS_LAUNCHER, isLauncher);
	}

	public List findByBuyQuantity(Object buyQuantity) {
		return findByProperty(BUY_QUANTITY, buyQuantity);
	}

	public List findByTotalMoneyForSingle(Object totalMoneyForSingle) {
		return findByProperty(TOTAL_MONEY_FOR_SINGLE, totalMoneyForSingle);
	}

	public List findAll() {
		log.debug("finding all BuyerGroup instances");
		try {
			String queryString = "from BuyerGroup";
			Query queryObject = getSession().createQuery(queryString);
			return queryObject.list();
		} catch (RuntimeException re) {
			log.error("find all failed", re);
			throw re;
		}
	}

	public BuyerGroup merge(BuyerGroup detachedInstance) {
		log.debug("merging BuyerGroup instance");
		try {
			BuyerGroup result = (BuyerGroup) getSession().merge(
					detachedInstance);
			log.debug("merge successful");
			return result;
		} catch (RuntimeException re) {
			log.error("merge failed", re);
			throw re;
		}
	}

	public void attachDirty(BuyerGroup instance) {
		log.debug("attaching dirty BuyerGroup instance");
		try {
			getSession().saveOrUpdate(instance);
			log.debug("attach successful");
		} catch (RuntimeException re) {
			log.error("attach failed", re);
			throw re;
		}
	}

	public void attachClean(BuyerGroup instance) {
		log.debug("attaching clean BuyerGroup instance");
		try {
			getSession().lock(instance, LockMode.NONE);
			log.debug("attach successful");
		} catch (RuntimeException re) {
			log.error("attach failed", re);
			throw re;
		}
	}
}